Electro-hydraulic rotary swing door drive, has cylinder with drive having hydraulic pump that is built as single piston pump, where displacement of single piston pump is marginally larger than required displacement of cylinder

摘要

The drive has an operating cylinder (4) arranged in a housing that can be displaced during opening and closing of a door by a spring-loaded mechanism. A drive provided for the cylinder has a hydraulic pump (5), which is built as a single piston pump (6). The displacement of the single piston pump is marginally larger than the required displacement of the cylinder. The single piston pump is integrated in a mounting plate.